<template>
  <el-form :rules="rules" class="login-container" label-position="left"
           label-width="0px" v-loading="loading" ref="loginForm" :model="loginForm">
    <h3 class="login_title">系统登录</h3>
    <el-form-item prop="username">
      <el-input type="text" v-model="loginForm.username" auto-complete="off" placeholder="账号"></el-input>
    </el-form-item>
    <el-form-item prop="password">
      <el-input type="password" v-model="loginForm.password" auto-complete="off" placeholder="密码"></el-input>
    </el-form-item>
    <el-checkbox class="login_remember" v-model="checked" label-position="left">记住密码</el-checkbox>
    <el-form-item style="width: 100%">
      <el-button type="primary" @click.native.prevent="submitClick" style="width: 100%">登录</el-button>
    </el-form-item>
  </el-form>
</template>
<script>
  export default {
    data() {
      return {
        checked: true,
        loginForm: {
          username: '',
          password: ''
        },
        rules: {
          username: [{required: true, message: '请输入用户名', trigger: 'blur'}],
          password: [{required: true, message: '请输入密码', trigger: 'blur'}]
        },
        loading: false
      }
    },
    beforeCreate: function() {
      document.getElementsByTagName("body")[0].className="container";
    },
    beforeDestroy: function() {
      document.body.removeAttribute("class", "container");
    },
    methods: {
      submitClick: function () {
        var _this = this;
        this.$refs["loginForm"].validate((valid) => {
          if (valid) {
            var _this = this;
            _this.loading = true;
            _this.postRequest('/login', {
              username: _this.loginForm.username,
              password: _this.loginForm.password
            }).then(resp => {
              _this.loading = false;
              if (resp && resp.status == 200) {
                var data = resp.data;
                _this.$store.commit('login', data.msg);
                var path = _this.$route.query.redirect;
                _this.$router.replace({path: path == '/' || path == undefined ? '/home' : path});
              }
            });
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      }
    }
  }
</script>
<style>
  @keyframes kfb {
    0% {
      background: #00FFFF;
    }
    25% {
      background: #00FFCC;
    }
    50% {
      background: #00FF99;
    }
    75% {
      background: #00FFCC;
    }
    100% {
      background: #00FFFF;
    }
  }
  .container {
    overflow: hidden;
    background: #00FFFF;
    animation: kfb 4.5s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
  }

  .login-container {
    border-radius: 15px;
    background-clip: padding-box;
    margin: 180px auto;
    width: 350px;
    padding: 35px 35px 15px 35px;
    background: #fff;
    border: 1px solid #eaeaea;
    box-shadow: 0 0 25px #cac6c6;
  }

  .login_title {
    margin: 0px auto 40px auto;
    text-align: center;
    color: #505458;
  }

  .login_remember {
    margin: 0px 0px 35px 0px;
    text-align: left;
  }
</style>
